These systems use the same scissor stay hinges allowing the window to stay in the position that it is opened to. All systems use multipoint locking systems and have a lockable ventilation position.
The Casement can be made to open either inwards or outwards with left or right handed opening; it can accommodate up to 36mm glazing units and has double compression gaskets
The Awning opens outwards and also accepts the large 36mm glazing. It also has double compression gaskets.
New additions for these systems are the scissor action winder openers
Giving the choice of fixed or retractable fly screens
* Ratings based off Thermosmart Windows uPVC Casement Window (Double Glazed) compared to Trend Windows & Doors Timber Casement Window (Double Glazed) and Hammer Aluminium Casement Window (Single Glazed) https://awawers.net/ressearch/search/vic